Detector device for weft-replenishing mechanism of looms.



T. PERKS.

DETECTOR DEVICE FOR WEFT REPLENISHING MECHANISM OF LOOMS.

APPLICATION FILED 113.12, 1913. 130,329. Patented Mar.2,1915.'

. 4 SHEETS-SHEET 1.

73 ARI 5' T. PBRKS. DETECTOR DEVICE FOR WEFT REPLENISHING MECHANISM OF LOOMS.

APPLIGATION FILED IEBIZ, 1913. L1 3329, Patented Mar. 2, 1915.

4 SHEETS-SHEET 2 T. PER-KS. DEI EOTOR DEVICE FOR WBPTREPLENISHING MECHANISM OF LOOMS.

APPLICATION FILED FEBJZ. 1913.

1,13Q,329, Patented Mar.2,1915.

4 SHEETS-SHEET 3.

T. PERKS.

DETECTOR DEVICE FOR WEFT RBPLENISHING MECHANISM OF LOOMS.

APPLICATION FILED 'rEB.12, 191s.

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TED smrnis PATENT OFFICE.

THOMAS PERKS, OF KEIGHLEY, ENGLAND, ASSIGNOR TO GEORGE HATTEBSLEY SONS LIMITED, OF KEIGHLEY, ENGLAND.

\ DETECTOR, DEVICE TE'OIB, WEFT REPLENISHING MECHANISM OF 1100MB. I

Specification of Letters Patent.

Application filed February 12, 1918. Serial No. 747,834.

To all whom it may concern Be it known that I, THOMAS PERKS, a sub ject of the King of Great Britain, and resident of 134 Grange View;'Lawkholme Lane, Keighley, in the county of York, England, have invented a certain new and useful Improvement in Detector/ Devices for Weft- Replenishing Mechanism of Looms, oi which the following description, wherein reference is made to the accompanying sheets of drawbe received and actuated as described.

ings, is a specification. p

t relates to detector devices for weft re- I plenishing mechanism for looms having boxes and particularly change shuttle boxes, such shuttle boxes having more than one compartment being arranged to move and bring each compartment in alinement with the shuttle race on the lay so that the shuttle that I has to be ejected therefrom or that has to be received therein will keep in its proper path in manner well known.

My invention has more especial reference to change boxes of the ty e known as drop shall hereinafter describe my saidinvention with reference to this type of "shuttle box having two compartments from which description it will be un derstood'that my invention may be extended to shuttle boxes having more than two cem-' partm ts by the employment of modifications itable to meet the requirements of the additional compartments.

In the accompanying sheets of drawings which are illustrative of my said invention.:Figure l is a 'front elevation of sufici'ent structure of a loom and its shuttle box I mechanism toillustrate the application thereto of my invention. Fig. 2 is an end elevation partly in section of the parts shown by Fi 1, this figure being drawn to a reduced 8056. Fig. '3 is a similar elevation to Fig. 2 but illustrates certainof the parts in altered tions and this figure is drawn to an enscale. Fig. 4 is a similar view to Fig. 3 but illustrates certain of-the parts in other positions as hereinafter explained. Fig. 5 is an elevation of the detector showing same in engagement with a part hereinafter described. Fig. 6 is a plan of parts illushated by Fig. 5. i

A indicates the end frame of the loom, B thejshuttle boxes and O the lay of said loom.

That ofshuttle box in connection with which ave elected to describe-my inventicn is that wherein two compartments 2,8,

are made use of, said compartments being operated by their operating mechanism actmg continuously, that is to say, the compartment 2, at one time will be level with the shuttle race, at which time its shuttle may be thrown across from such shuttle box and reguiding bracket 5 within which it is moved Patented-Mar. 2,191 5t turned to be received by said shuttle box,

or operated by the link 6 coupling it to the level 7 this latter having at its other end a connecting rod 8 reaching into connection with the actuating devices which as stated maly be of any known and common kind.

n connection with each of the compartments 2 and 3 I arrange a detector a, a respectively such detector being arranged to slide through the back part b forming the framework or shuttle box back, the other end of the detector a or a being arranged to slide through a guiding bracket 10 where normally it is-pressed forward when free'byf itsrespective-sprin'g-c'or c The bracket '10 which supports the detectors a, a -is fixed upon so as to move with the shuttle box B, hence the detectors at all times are opposite to their respective shuttles d, d wh'eii intheir proper compartments and one'esential feature of-the actions of these detectors a, a, is that they-are always brought-into action to enter the shuttle box and contact with-the weft within their respective shuttles during allowed to enter saidshuttle 65 immediately the shuttle boxcommenee'd to ascend and the efl'ective detection or indication of the condition of the weft therein to whether same has been depleted of withdrawn therefrom to a p v mined by such detector during the motion of the box B as it istraveling with its compertinent 2 from the lower to the'liigher pesitien. The deteetor c at sudh time is redbtermined extent, is -deter only permitted to move into the compartment 2 when said compartment begins to rise and slightly before said compartment 2 reaches its other and highest position the 6 detector a will have been withdrawn. As

means whereby the detectors and a are thus enabled to move into and-out of the shuttle box at the proper time relatively with the movement of the said shlittle box, w arrange their springs a, 0 as before stated, to always tend to press them to enter their respective com artmentawhile mounted to slide through rackets 7, f, I arrange a double incllne sliding piece or bar f, the 5 inclines f, f of which act respectively) upon the antifriction bowlsc, 0 carried y the detectors 0, c. This sliding piece 7 iscaused to rise and tall in unison with the movements of the shuttle boxes by the connecting 2o rod 9' connected with the piece f and with a lever g which is pivoted at g to the bracket 13 carried by the swing rail it, upon which is mounted the laysword 15;.-

The lever g is caused to oscillate on its pivotal pin 9 by a projecting ear k, secured to the vertical box-operating rod 4 so that as said rod t rises and descends to lift and depress the shuttle box 15 said ear in alsocenter 9 it is necessary that it should be kept in its extreme position during the time that the car It is moving after leaving; the pin it and before it reaches the pin kkor vice versa. To efiect this te'mporar arrest 40 the lever g has apendant arm g which ex.- tends so that a runner 9 mounted thereon may press upon the louder or leveling device at, causing sameto recede (when passing over its central part) and compress its 5 spring me. When the or g has assed said central part the recoil of thesprmg at. will IEorcethe device at vertically andwill so retain the or g and its lever g in the position they have last assumed thus it reso tains lever g in its raised position at one o, as shown by ldig. l, as well as in its lowest osition (not illustrated) at another time. he lever g is raised by the ear is into the position shown by 1Fi l by con- 56' tact of said'ear with ,the pin it w ich isnxod to said lever. and" when the lever g is so raised the rod? t will have lifted the shuttle box to its position. The next ovoinent cit-the rod-t, to a r the shuttle box on into its lowest position wcomm from the position referred to,i.but the ear b will leave the pin a and will move through halt the ce travensed-by the rod firvhen moving e shuttlebexes to their lowest posi tion, before said ear comes in contact with the pin it. The remaining half of the motion of the ear in after contacting with said pin it will carry said pin 72, through the desired distance to move the lever g to its lowest position. These movements of the lever g relatively to the ear k leave the parts actuated by the lever g at rest during a certain portion ofthe movements of the shuttle boxes B. V a v The portion of movnt of the shuttle box Baiuring the time that the lever g at rest isthat which is midway between its highest and lowest positions. At this time the incline f or i as the case may be, permits the feeler a or a to ass into said shuttle box to contact with t e weft in the shuttle. During the continuation of the motion of the shuttle box from said mid: osition to either of its extreme positions that is, the position at the top or at the bottom ,of its path) the incline f (as it is actuated by the; rod 9 and lever 9 will have moved so as to withdraw said feeler a or a from within the shuttle box. Tn this manner said withdrawal is-efiected simultaneously with the arrival of the shuttle box at its said extreme position. As an epic, when the shuttle. box is moved from occupying its highest position down to occup its lowest position, 'during the time that t e compartment 2 is in or about middle position, the detector a will be potted to enter said compartment 2 by reason of the incline 7" being at this time in the fiosition shown by Figs 3. The incline f is t on brought down irnm its said position into its lowest position and this is ehected by the ear-Ic contacting with the in k on the lever 9 so that said lever g y the rod g may actuate the incline f to cause the surface i to force out int the bowl 0 and therefore the detector a.

The'movement of the ear is in the o posits direction has a like efiect, since it'wifi move thro'u h half the length of its upward path from sing in contact with the pin it beilore it will come into contact with the pin it so that in this case also the com artrnent 3 will have been raised fromv its owest position half way toward its highmt. position (that is level with the lay) where it will have allowed the detector a to enter said compartment, its said advancement into said compartent being ermitted by the incline 7 being stationary uring the; time that the compartment 3 was moving through halt its space. The withdrawal either d ameter a from its said advanced position is attested by the incline f bg raised during the its movement thereof through the remaining (the incline scribed.

allowed a descend the was f ma isf therefore forced by its spring a to enter the shuttle (2 whereas by the shuttle box B continuing in its motion until its lowest position is reached then the incline f will have descended so ,far as will bring the incline part f into 'the position shown b 'Fig. 4, where it will have withdrawn the etector a from the shuttle'and theishuttle box, thus at this time the shuttle may be .freely actuated by the picking mechanism withoutinterfering in any way with the detector a, while the time occupied by the shuttle box moving from one position to the other is utilized for bringing into action the detector a In a similar manner when the shuttle box b rises to carry the eompartment 3 from its lowest position up into alinement with the shuttle race then t e incline f acts" in a similar manner upon t e detector (1 as does f on the detector (1 above de- Provided the weft in the shuttlehas ibeen depleted sufliciently to permit the detector a or a to advance s'ufliciently far for a catch piece a. or a carried by said detector to engage with the notch 39 on the rod 1)" or the notch 11 on the same rod, then as the detector a or the detector a (as the case may be) rises or descends with its respective compartment will by its respective catch piece a or a? carry with it the rod 3) to its highest or to its lowest position, p

In Fig. 3 the rod p is shown as being engaged by the catch a and forced into its lowest position so that at this time said rod ;0 causes the lever 19 to oscillate upon its supporting shaft 5 so that this shaft is enahledt pa t ywith jit verti a r {t the ri t of its vertical position, at; lch time t e lever r is permitted to oscillate upon ,its shaft 1' and descend so that its outer end will come intocontact with the hunter 8 pivoted as 8 This bunter s is ar 'ged according to my present inventlon to actuate the'lever s so that this latter may ga e with its notch in the rod actuate thelever s and so bring the upper end .9 of said lever clear of the ratchet s". This action permits said ratchet a to descend by its own weight into the path of motion of the continuously operating catch lever i whichis arranged to rin into oporation the weft replenishing mec anism 1n manner common and well known, said weft replenishing mechanism being of any well known kin either of the type for suppl g weft to the runm'n shuttle or for su ti- .tuting a weft-sup lied-shuttle for a shuttle dc leted of its we rovided the weft in either shuttle is not sufiiciently depleted to enable its respective detector 'to carry its catch it or a to enthen this p remains in a centralposit on where will hold. or retain the lever 1 to support the lever r by taking beneath the projecting part r formed thereon as is shown by Fig. 2 The lever r is raised from its descended position as shown by Fig; 3 into a position above the lever g by its arm 1' which carries an' adjusting screw 7* being brought by the motions of the slay board so that said screw 7' will come in contactwith a s' ring it carried by a bracket fixed to the end ame a. v

The movements of the rod p so as to brin it '15 and use same in connection with shuttle to boxes that are arran d to oscillate about theiraxial centers an although I have only shown my devices in conjunction with a shuttle box having two compartments it may be possible to use same with shuttle boxes having a larger number, of compartifnents so that I do not wish to? confine my ieljf to the exact, details herein described,- ut

What I do wish to claim is 1. In looms having automatic weft relenishingmechanism a movable shuttle box avin'g a plurality ofcompartments, a detector devlce mounted upon each of said compartments, means whereby the detector device may be brought into action to contact with the weft in the' 'shuttle and to be withdrawn therefrom during. the movements of its respective compartment, and means for actuatlng said detectors together with devices whereby theindications transmitted through said detectors will cause -;at actuation of the weft replenishing mechanism,

substantially as herein specified.

2. In a loom having automatic weft replenishing mechanism and shuttle boxes with a plurality of compartments, a support movable with the shuttle boxes, detectors slidabl mounted in the support so as to be movab e at all times with the shuttle boxes, each compartment having its respective detector, a slidable bar on ging theiietcctors and provided with an 0 set ortion to per-- mit the detectors to enter t eir res ectiye shuttle boxes, means for actuating t 0 bar,

and means whereby the indicating movement of said detectors will cause the actuation of the weft-re lenishing mechanism.

3. In a 00m having automatic weft replenishing mechanism and shuttle boxes with a glurality of compartments, detectors-1 moun p u on said shuttle box so as to be moved at ment havin its respective detector,

for no y pressing said detectors in one times therewith, each compartsprings repleni :1. r

n one. direction, a s

- ss sse "notched rod will bring into action mechafor automatically .efiecting the weft of the doom substantially. as herein specified. A. f I

4. Inaloom' hating antomaticweft replenishing me'honism' a d shuttle bones with a glurality of compartments, detectorsmite upon said shuttle box so as" to be moved at all times frewith, each compart nent, having its respective detector, springs for normally gre'sslng said detectors 'ding bar ha inclinedsurfaces for actuating said detectors, lever devices for transmitting motion to said inclined sliding bar, and.v means whereby said lever devices will he operated by the shuttle box operat' I mechanism, substantially as herein speei ed. a

an a loom having-automatic weftreplenishing mechanism and shuttle boxes with a plurality of compartments, detectors mounted u on said shuttle box so as to he moved at a times therewith, each compartment having its respective detector, springs for normally pressing said detectors mate direction, a sliding bar havinginolined stir faces for actuating said detectors, a hex-operating rod having a projecting ear, a lever having spaced pins engaging said ear, a rod connecting the lever with; the'sliding bar, and means for actuating the be; operating rod substantially as herein specified; I,

. 6. In a loom having automatic weft replenishing mechanism and shuttle boxes "springs, a notche mounts withsaid lever arm, s11 "specified.

with a plurality of oompartments, detectors mounted upon said shuttle box so as to he moved at all times therewith, each compartment having its respective detector,

springs for normally pressing said detectors no one direction, means for operating said detectors in the o posit'e direction to said red as p for engaging with catches upon said detectors, connected lever arms one'of which is engaged with said r0d,,a lever havinga ro'ection for operating in conjunction wit t e other lever arm, and springs for bringing the last mentioned lever arm into a'centra position substantially as herein specified.

11in a loom having automatic weft repleniehing mechanism and shuttle homes with a glurality of compartments, detectors u on said shuttle box so as to he moved at a l'times therewith, each compart- I direction, a sliding barhaving inclined surfaces for actuating said detectors,-a box-operating rod having a projecting car, a lever havin a laterally extending arm, and space pins engaging said ear, a rod connectingthelever with the sliding bar, and a spring-actuated levelinevice cooperating In testimony whereof l have sied my name to this specification in thepresenceof two subscribing witnesses. v

THQMAS Witnesses Jonnv Wnrrnman,

Hams/roan.

.ment having its respective detector, springs for normally pressing said detectors in one to antially as herein 

